Commit | Line | Data |
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0d1fb0a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
ba180fd4 | 3 | * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
1da177e4 LT |
4 | */ |
5 | ||
3f07c014 | 6 | #include <linux/sched/signal.h> |
29930025 | 7 | #include <linux/sched/task.h> |
589ee628 | 8 | #include <linux/sched/mm.h> |
37185b33 AV |
9 | #include <linux/spinlock.h> |
10 | #include <linux/slab.h> | |
11 | #include <linux/oom.h> | |
9ffc6724 | 12 | #include <linux/reboot.h> |
37185b33 AV |
13 | #include <kern_util.h> |
14 | #include <os.h> | |
15 | #include <skas.h> | |
1da177e4 | 16 | |
5e38291d | 17 | void (*pm_power_off)(void); |
0834f9cc | 18 | EXPORT_SYMBOL(pm_power_off); |
5e38291d | 19 | |
1da177e4 LT |
20 | static void kill_off_processes(void) |
21 | { | |
d0b5e15f RW |
22 | struct task_struct *p; |
23 | int pid; | |
24 | ||
25 | read_lock(&tasklist_lock); | |
26 | for_each_process(p) { | |
27 | struct task_struct *t; | |
28 | ||
29 | t = find_lock_task_mm(p); | |
30 | if (!t) | |
31 | continue; | |
59376fb2 | 32 | pid = t->mm->context.id.pid; |
d0b5e15f RW |
33 | task_unlock(t); |
34 | os_kill_ptraced_process(pid, 1); | |
77bf4400 | 35 | } |
d0b5e15f | 36 | read_unlock(&tasklist_lock); |
1da177e4 LT |
37 | } |
38 | ||
39 | void uml_cleanup(void) | |
40 | { | |
ba180fd4 | 41 | kmalloc_ok = 0; |
1da177e4 | 42 | do_uml_exitcalls(); |
026549d2 | 43 | kill_off_processes(); |
1da177e4 LT |
44 | } |
45 | ||
46 | void machine_restart(char * __unused) | |
47 | { | |
ba180fd4 | 48 | uml_cleanup(); |
6aa802ce | 49 | reboot_skas(); |
1da177e4 LT |
50 | } |
51 | ||
1da177e4 LT |
52 | void machine_power_off(void) |
53 | { | |
ba180fd4 | 54 | uml_cleanup(); |
6aa802ce | 55 | halt_skas(); |
1da177e4 LT |
56 | } |
57 | ||
1da177e4 LT |
58 | void machine_halt(void) |
59 | { | |
60 | machine_power_off(); | |
61 | } | |
86abcd6e JB |
62 | |
63 | static int sys_power_off_handler(struct sys_off_data *data) | |
64 | { | |
65 | machine_power_off(); | |
66 | return 0; | |
67 | } | |
68 | ||
69 | static int register_power_off(void) | |
70 | { | |
71 | register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, | |
72 | SYS_OFF_PRIO_DEFAULT, | |
73 | sys_power_off_handler, NULL); | |
74 | return 0; | |
75 | } | |
76 | __initcall(register_power_off); |